Fulcrum for brake-beams.



Q. 0 9 1 0 1 A M D E T N E T A FULCRUM FOR BRAKE BEAMS.

. INVENTDR 5: fifmflla j .7 @AWFZ ATTORNEY APPLICATION FILED NOV. 9,1901.

10 MODEL.

I Wnnesszs:

UNITED. STATES PATENT OFFICE.

I FRANK W. COOLBAUGH, OF EASTON, PENNSYLVANIA.

FULCRUM FOR BRAKE-BEAMS.

SPECIFICATION forming part of Letters Patent N 0. 722,565, dated March10, 1903.

Application filed November 9, 1901. Serial No. 81,761. (No model.)

To all whom, it may concern:

Be it known that I, FRANK W. OooLBAUGH,

-a citizen of the United States, and a resident of Easton, in the countyof Northampton and State of Pennsylvania, have invented certain new anduseful Improvements in Fulcrums for Brake-Beams, of which the followingis a specification.

This invention relates to improvements in brake-beams for railway-cars,and more particularly to improvements in the fulcrum by means of whichthe brake-lever is pivoted to the brake-beam.

The object of myinvention is to provide a new and improved brake-beamfulcrum which is simple in construction, strong, durable, reliable,easily applied, and which permits of ready adjustment for a brake-leverinclined to either side.

In the accompanying drawings, in which like letters of referenceindicate like parts in all the figures, Figure '1 is an end View of myimproved brake-beam fulcrum. Fig. 2 is a side View of the same, thetwoparts being detached. Fig. 3 is a transverse sectional view throughthebrake-beam and the clamp part of thefulcrum on the beam. Fig. 4 is anend view of the forked section of the fulcrum.

The brake-beam A is made of rolled steel in the well-known shape of adeck-beam.

My improved fulcrum is composed of two main parts-the clamp or yoke B,applied on the brake-beam direct, and the fork O, which is swiveled inthe clamp.

The flanges A 'of the brake-beam face the wheel-tires, and thebrake-beam, when the brakes are applied, must be pulled in the directionfrom the bulb of the beam toward the flanges. The yoke or clamp B issubstantially U-shaped, and at the ends of its shanks has lateralextensions B, which fit on the flanges A and overlap the edges. On theouter end of each of the two lateral extensions A ahalf-roundhalf-socket D is formed, which when the clamp B is applied on the beamproject from the flanged edge and form a cylindrical socket. The clampis provided in each shank with a hole E, which can register with eachother and with a hole F in the web of the beam, and through which holesE F a rivet can be passed for holding the clamp close on the beam andpreventing forcible shifting in the direction of the length of the beam.Along each edge of each shank of the clamp a strengthening flange or ribG is formed, which terminates at the side edges of the half-sockets D inwings P in line with a diametrical line drawn across the end edges ofthe half-sockets, and these Wings have holes for receiving rivets H, bywhich the two half-sockets are held together in front of the flanges A.The half-sockets D are each provided at the inner end with a half-roundinternal rabbet J.

The fork 0, between the shanks C of which the brake-lever is to bepivoted by a bolt passing through the holes 0 in said shanks and a holein the brake-lever, is provided at its innotclosed end with a neck K,fitting in between the two half-sockets when they are closed, and thisneck K is provided on its free .end with an annular flange L, fitting inthe annular groove formed between the rabbets J and the face of theflanges A. The neck K has a longitudinal spline M, and one of thehalf-sockets D has two longitudinal grooves N, separated a quarter of acircle and each adapted to receive the spline M. The halfsockets eachhave an external flange O at the outer end, and thefork O has anexternal flange R at the base of the neck K, which flanges O and R serveto relieve the neck K from some of the bending strain. When thebrake-lever is to be inclined from the lower left to the upper right, asshown in Fig. 1, the spline M is in the left-hand groove N, and when thebrake-lever is to be inclined from the lower right to the upper left theneck K must be turned axially to bring the spline M into the right-handgroove N. This can only be done before the rivets H are inserted.

thus be used on all beams whether the brakelevei' is inclined to theright or left.

I am aware that trussed brake-beams have been constructed with anaxially-adj ustable fulcrum and do not claim this broadly.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. An adjustable fulcrum for brake-beams composed of two parts, namely:a separable clamp to be applied on the brake-beam and having twohalf-sockets and a fork having a neck fitting between said half-sockets,substantially as described.

2. An adjustable fulcrum for brake-beams, com posed of a clamp to beapplied on the beam and having a cylindrical socket provided withlongitudinal grooves and a fork having a neck fitting in said socket andhaving a longitudinal spline, fitting in either of said grooves,substantially as herein shown and described.

3. Ina fulcrum for brake-beams, the combination with a clamp having twohalf-sockets, of a fork having a neck held rigidly between saidhalf-sockets, substantially as described.

4:. In a fulcrum for brake-beams, the combination with a clamp, havingtwo half-sockets, of a fork having a neck fitting between saidhalf-sockets and means for preventing movement of said neck between thesaid halfsockets, substantially as set forth.

5. In a fulcrum for brake-beams, the combination with a clamp having twohalf-sockets provided at their inner ends each with a rabbet, of a forkhaving a neck held rigidly between said half-sockets and having anannular flange at its inner end, said flange fitting on the rabbets atthe inner ends of the half-sockets, substantially as described.

6. In a fulcrum for brake-beams, the combination with a flanged brakebeam, of a clamp having two half-sockets and applied on said brake-beam,a rivet passed through the web of the beam and the clamp and two rivetspassed through wings on said clamp at the sides of the half-sockets andbeyond the flange of the beam, substantially as described.

7. The combination with a clamping-block adapted to substantiallysurround a brakebeam, of a lever-post mounted in said clamping-block,and means for locking said leverpost in position in said clamping-block;substantially as described.

8. The combination with a clamping-block adapted to substantiallysurround a brakebeam, of a lever-post mounted in said clamping-block,and means for lockingsaid leverpost in fixed position in saidclamping-block; substantially as described.

9. The combination with a clamping-block adapted to substantiallysurround a brakebeam, of a flanged lever-post mounted in saidclamping-block, and means for locking said lever-post in position insaid clam ping-block substantially as described.

10. The combination with a clamping-block adapted to substantiallysurround a brakebeam, of a flanged lever-post forked at its free end andmounted in said clamping-block, and

means for locking said lever-post in position in said clamping-block;substantially as described.

11. The combination with a clamping-block adapted to substantiallysurround a brakebeam, of a lever-post mounted in said clamping-block,and meansfor locking said leverpost'in position against rotation in saidclamping-block; substantially as described.

12. The combination with a clamping-block adapted to substantiallysurround a brakebeam, of lateral flanges on said clampingblock adaptedfor securing means therethrough, a lever-post mounted in saidclamping-block,and means for locking said leverpost in position in saidclamping-block; substantially as described.

13. The combination with a brake-beam, of a clamping-block adapted tosubstantially surround said brake beam, a lever post mounted in saidclamping-block, and means for lockingsaid lever-post in position in saidclamping-block; substantially as described.

14. The combination with a brake-beam, of a clamping-block adapted tosubstantially surround said brake beam, a lever-post mounted in saidclamping-block, and means for locking said lever-post in fixed positionin said clamping-block; substantially as described.

15. The combination with a brake-beam, of a clamping-block adapted tosubstantially surround said brake-beam, a flanged leverpost mounted insaid clamping-block, and means for locking said lever-post in positionin said clamping-block; substantially as described.

16. The combination with a brake-beam, of a clamping-block adapted tosubstantially surround said brake-beam, a lever-post provided withlateral flange on its inner end mounted in said clamping-block, andmeans for locking said lever-post in position in said clamping-block;substantially as described.

1 7. The combination with a brake-beam, of a clamping-block adapted tosubstantially surround said brake-beam, perforated, lateral flanges onsaid clamping-block, and means for locking said lever-post in-positionin said clamping-block; substantially as described.

18. The combination with a clamping-block adapted to substantiallysurround a brakebeam, of a forked lever-post mounted in saidclamping-block between two half -sockets IIO therein, and means forholding said leverpost in position in said block; substantially asdescribed.

19. The combination with a clamping-block surround said brake-beam, aforked lever post mounted in said clamping-block between twohalf-sockets therein, and means'for holding said lever-post in positionin said block; substantially as described.

23. The combination with a brake-beam, of a clampingblock adapted tosubstantially surround said brake-beam, a forked leverpost mounted insaid clamping-block between two half-sockets therein, and means forholding said lever-post in position against rotation in said block;substantially as described.

24. The combination with a brake-beam, of a clamping-block adapted tosubstantially surround said brake-beam, a forked leverpost mounted insaid clamping-block between two half-sockets therein, lateral flanges onsaid lever-post within said half-sockets, and means for holding saidlever-post in position in said block; substantially as described.

25. The combination with a brake-beam, of aolamping-block adapted tosubstantially surround said brake-beam, perforated lateral flanges onsaid clamping-block, a forked lever-post mounted in said clamping-blockbetween two half-sockets therein, and means for holding said lever-postin position in said block; substantially as described.

Signed at Easton, in the county of Northampton and State ofPennsylvania, this 23d day of April, A. D. 1901.

- FRANK W. OOOLBAUGH.

Witnesses:

JAMES M. DIEHL, OSCAR F. GUNZ.

